Chair/ottoman base



FIG. 1 is a perspective view of a chair/ottoman base embodying my new design, with a chair supported by the base being shown in broken lines for illustrative purposes only and forming no part of the claimed design.

FIG. 2 is a top plan view of the chair/ottoman base of FIG. 1.

FIG. 3 is a bottom plan view of the chair/ottoman base of FIG. 1; and,

FIG. 4 is a front elevational view of the chair/ottoman base of FIG. 1. 

The ornamental design for a chair/ottoman base, as shown and described. 